For our pups that have a sensitive tummy, these treats are made with grain free flour such as almond or coconut flour, blueberries and coconut oil. Blueberries are great for your pup as they are nutrient dense and contain antioxidants to help to build a stronger immune system! Because our treats are made to order using natural ingredients, we recommend storing them in an air tight container for 10-12 days. Can be kept in refrigerator for up to 12-14 days. Treats can also be kept frozen up to 2 months. Please note, due to using natural human grade ingredients, changes in coloring may occur.